# chemistry

## Chemical Reaction and Equation Class 10 MCQ

In this article we will see 50 Chemical Reaction and Equation Class 10 MCQ. Chemical Reaction and Equation is a topic that explains the process of chemical reactions and the chemical equations that represent them. This topic is an essential part of the class 10 Science syllabus and plays a vital role in developing the …

## Convert 27° Celsius To °Kelvin

Question :- Convert 27° Celsius To °Kelvin Given :- ➡°C = 27° To Find :- ➡°K = ?   Formula :- ➡°K = °C + 273 Solution :- ➡°K = 27° + 273 ➡°K = 27° + 273 ➡°K = 280° Hence , Kelvin Scale Is 280° Kelvin More Information :-    Kelvin temperature scale Is …

## A machine used for cutting the matured crop​

Question :- A machine used for cutting the matured crop​ Solution :- Crop production is the process of growing crops for domestic and commercial purposes. Some of the crops produced on a large scale include rice, wheat, maize, jute, etc. Crop production involves the following practices: Soil preparation Sowing of seeds Irrigating the soil Harvesting of …

## How will you prove that air is dissolved in water

Question :- How will you prove that air is dissolved in water Solution :- Take some water in a glass vessel or beaker. Heat it slowly on a tripod stand. Look carefully at the inner surface of the vessel. You will see tiny bubbles on the inner side. On heating. These bubbles come from the …

## P3M:N4J::R3P:

Question :- P3M:N4J::R3P: Q3N P3N Q4N P4N​ Solution :- The Answer is option 4. Explanation :- P4M will comes in place of question mark in the given analogy .   To Find :– complete the analogy :- P3M : N4J :: R3P : ? a) Q3N b) P3N c) Q4M d) P4M   Logic :– First alphabet :- Subtract 2 …

## Phosphoric element is profusely found in

Question :- Phosphoric element is profusely found in Solution :- Phosphoric element is profusely found in Almonds, figs, grapes, dates, apples and oranges almonds, figs, papayas, guavas, and pineapples seasonal fruits The questions posted on the site are solely user generated, Doubtnut has no ownership or control over the nature and content of those questions. …

## Mention any two major common concerns of a nuclear family.

Question :- Mention any two major common concerns of a nuclear family. Who, according to the passage , are responsible for them ? Explain the expression ‘charity begins at home’. Describe the atmosphere in the joint families. Which word in the passage means ‘holiness of life’?​ Solution :- 1) Too much independence There is no time …

## Government can help in forming new venture by

Question :- Government can help in forming new venture by providing: Select one: Subsidiaries Finance Infrastructure Technology​ Solution :- The Answer is option 3. Explanation :- Private capital productivity can be boosted by investments in infrastructure, which complements private capital. Private capital increases worker productivity. This results in higher wages and lower interest rates (loan …

## How should significant sound events be noted in Clean Verbatim? (laughter) [laughter] [Laughter] Laughter

Question :- How should significant sound events be noted in Clean Verbatim? (laughter) [laughter] [Laughter] Laughter Solution :- The Answer is Option 2. Explanation :- Sound events” that are “significant” to the audio must also be noted. Use brackets “[ ]” for notes. The notes are “always” written in “lower case” irrespective of the position in the sentence. …

## From where did the Harappans get copper?

Question :- From where did the Harappans get copper?  Mumbai  Delhi  Kerala Rajasthan Solution :- The Answer is Option 4. Explanation :- The Harappans sourced the raw materials from many places. Copper was likely to have come from the present-day Rajasthan and Oman. Tin was also brought from Iran and Afghanistan. It is possible that gold was brought …

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